Apparatus for applying trouser hooks



May 5, 1931.

o. KENT 1,803,970

APPARATUS FOR APPLY ING TROUSER HOOKS Filed March 26, 1928 2 Sheets-$heet 1 Owe/a WMJVM/ May 5, 1931. o. KENT APPARATUS FOR APPLYING TROUSER HOOKS 2 Sheets-Sheet 2 Filed March 26, 1928 ////////////////////////////////4Ifl Patented May 5, 1931 oni'reo STATES PATENT emu OWEN KENT, DOWN'ERS"GROVE, ILLINOIS, ASSIGNOR T0 BRIEDE & ROGOVSKY, COPABTNERSHIP-;C.ONSISTING OF HENRY J'. BBIEDE AND W. P. 'ROGOVSKY, OF

CHICAGO, ILLINOIS APPARATUS roa'nrrnrnvs 'rnonsma HOOKS Application. filed March 26, 1928. Serial 'No. 264,727.

Heretofore trouser hooks have usually been sewn on by hand and in order to do this the trouser corner to which the hook is applied must also be finished by hand, which makes the application of the hooks so expensive that many manufacturers who would otherwise use the'hooks are prevented from doing so. The present invention relates to an improved method of applying such hooks, or more specifically for applying blanks which may then be formed intohooks whereby the hooks may be sewn on and the corner. finished by machine. In accordance with my improved method, the hook blank, which is flat, is inserted between the top fly and left fore part of the trousers with the hook forming portion projecting inwardly and then the two parts are sewn together with the hookin position, then the right sideis turned out and the hook forming portion is bent back, preferably p by means of a suitable machine to complete the hook.

V The objects of this invention are to provide an improved method of applying or sewingv on trouser hooks or blanks therefor and finishing the corner by means of the sewing'ma- I chine; to provide an improved feeding mechanism' for a sewing machine for applying trouser hooks; to provide means whereby blanks for formingtrouser hooks may be applied to the trousers by means of a sewing ma chine; to provide an automatic feed for a trouser hook or blank having a plurality of holes therethrough whereby the hook may be fed through a sewing machine to vbe sewn to the goods; and to provide such other advantages in manufacture and ii -apparatus of this character as willappear more fully hereinafter. In the accompanying drawings illustrating this invention, 7

Figure 1 is a plan viewof a portion of a sewing machine showing my improved feed device applied thereto;

Figure 2 is a front view of the same; Figure 3 is a sectional view taken on the line 33 of Figure 1;

V Figure 4 is a sectlonal View taken on the line H of Figure 1;

Figure 5 is a sectional'plan view taken on the line 55 of Figure 3;

Figure 6 is a sectional detail taken on'the line 6'6"of Figure 1; and

Figure 7 is a'detail showing a stop notch for the blank feeder or carrier.

As shown in these drawings, 10 represents the frame or table of the sewing machine which may be of any, ordinary or preferred kind and having a head 11 in which is mount ed the needle bar 12 and p'resser bar 13 which carries the presser foot 14. The needle '15 is carried by the needle bar. The machine also has the usual feed 16 for moving or feeding the goods forwardly under the needle. This feed or device is carried by a feed bar 17 which is pivoted atone end to arms 18 on an oscillating shaft 19. The opposite end of the'feed bar 17 is forked and engages'with a in 20 on an arm 21 carried by an oscillating shaft 22. These parts of the machine are standardor well known construction, and the machine is provided with suitable mechanism This blank has a plurality of holes 26 which are in alignment and spaced in accordance with some predetermined length of stitch so that when the blank is fed through the machine the sewing machine'needle will register withthese holes as the blank passes under the same; This blank is shown in Figure 1 between the top and bottom flies 27 and 28, one of these flies being turned ba'ckwardly to show the position Ofthehook, Y

The carrying or feeding of the hook blank together with the goods through the sewing machine constitutes one ofthe important features of this invention.- The shank or body portion of the'hook blank is mounted in a carrier 'or feeder 29 which is provided with a groove-or recess 30 for receiving the same and has a projection 31 which fits in the hole in the shank. The carrier is also provided with-a plate 32 which projects slightly over the end of the'blank in order to prevent the c blank from becoming accidentally disengaged therefrom. The carrier 29 is provided with a guideway 33 for engagement with a guide bar 34 which extends across the ma chine and is securely fastened to the table, as by means of screws 35. The carrier 29 is provided with a number of teeth or serrations 36 which are spaced apart the same distance as the holes in the hook blank and the same distance as the feed is set to move, these serof this spring is fixed to the bar, as shown at 42, and a fulcrum is provided by a pin 43. This resilient or yielding mounting of the pin 37 is provided so that the pin may be depressed at certain times, as will presently be described. The bar 39, as shown, is below the table 10 and slots or recesses 44 and 45 are provided. respectively in the table 10 and in the guide bar 34 through which the pawl projects in order to engage with the teeth 36 on the lower side of the carrier 29.

One end of the bar 39 is pivoted at 46 to an adjustable finger or slide 47 which is mounted in an arm 48 which is provided with a clamp for clamping it on the shaft 19. The slide or finger 47 is provided with an adjusting screw 49 for adjusting it longitudinally and with a set screw or clamping screw 50 for fastening it in adjusted position. The clamp for the arm 48 is provided with a clamping screw 51 for fastening it in adjusted position.

This arrangement is such that the bar 39 may be adjusted for diflerent machines so that it will have substantially the same movement as the bar 17 which carries the feed. The opposite end of the bar 39 has a fork 52 which engages with a roller or pin 53 on an arm 54 which is provided with a clamp having a screw 55 for adjustably clamping it on the shaft 22., I The movement of the shafts 19 and 22 together with the bearing levers or devices for the pawl is such that the pawl moves from the position shown in Figure 4 downwardly, then to the left, and then upwardly where it registers accurately with the next tooth, and then moves forwardly or to the right to complete the feeding movement of the carrier 29. This operation is synchronized with the movement of the needle and feed as heretofore suggested. The carrier 29 is in, part manually operated to bring it into automatic feeding position-and also to return it to its an incline 63 in the guide bar 34 and engages with a stop 64 at the end of the incline. The position of this stop is such that when the lug 61 engages therewith the hook blank 23 will be positioned adjacent to the needle and the pawl 37 will be in position to engage with the first tooth in the carrier 29 in its next.

succeeding movement. In other words, it brings the blank into position to be automatically fed through the machine by the blank feeding mechanism.

After the blank has been fed through the machine and sewn into position, the stitching of the fly or goods may be continued in the regular manner as far as desired or to the end of the seam, it being understood that after the blank has been fed past the needle it may be readily disengaged from the carrier 29 to permit such further stitching. When the stitching has been completed, it is necessary to return the carrier to original or initial position, and in order to do so the pawl 37 must be depressed. If the machine is stopped in a certain position, the pawl will, of course, be depressed but in or der to insure the ready return of the carrier without turning the machine to such position, I provide means for depressing the pawl by the action of the push button 57 and shoe 59.

A' vertically movable strip or rail 65 is mounted in a slot 66 in the guide bar 34 in such position that the shoe 59 may slide along the same. The rail 65 has a central downwardly extending stem or branch 67 with a rectangular hole 68therein through which the pin 40 projects, asshown particularly in Figures 3 and 5. The stem 67 is adj ustahly mounted on an arm 69 by means of screws 70 and 71, the latter engagingwith a curved slot in the end of the arm. This permits a swinging movement or adjustment of the rail with respect to the arm. The arm 69 is formed in two pieces which are fastened together by screws 7 0 which pass through a slot in one of the pieces so that the length of the arm may be varied. This arm is pivoted at 71 to a bracket'72 on the main frame of the sewing machine, and its free end which carries the rail 65 is held in raised position by means of a spring 73. The

stem 67 has a stop lug orprojec'tion 74 which This arrangement is such that; when the pressed, the portion of the stem 67 forming the upper operator is to boundary of the hole will engage with the pin 40 and depress the pawl so that the teeth 36 may pass over the same, and the carrier return to normal or initial position.

Nhen a hook blank is to be sewn on the trousers, the operator inserts the same in the proper position in the waist band and then places the waist band or trouser corner together with the blank in the machine with the blank inserted in the holder, as shown.

in Figure 1. He then presses on the button 57 and moves the carrier together with the blank forwardly until the lug 'or PIOJQCUOH 61 strikes the stop 64 when the carrier is in position to be moved forwardly automatically. The machine is then started, which starts the stitching in advance of the blank and the needle then passes through the first of the holes in the blank and then through the opening 25 in the hook portion, and then through the other holes, the goods and blank being carried forward until the carrier 29 reaches its advanced position when the operator releases the blank rom the carrier and then if desired continues the stitching operation on the waist band or around the trouser corner. It will be noted that the carrier has moved on to a position where it will be out of the way for such further use of the machine as may be desired. When another blank is to be sewn on, the carrier is returned as above described and the opera tion repeated.

After the blank hasbeen sewn on in this manner, the usual tape may be passed through the hole 31 and the goods are turned right side out and the tape (not shown) is sewn into the fly seam in the usual manner. The curved or concave portion of the hole 31 where the tape engages is such that the tape will be centered in the hook and will be in position so that there will always be an even-pull on the same.

It will also be noted, that on account of the stitching through the hole 25 the adjacent portion of the hook may bear against such stitching which will tend to hold the hook more firmly in position in the band. After the blank has been sewn and fastened in position, the projecting hook portion 25 may then be bent backwardly by means of a suitable machine so that it will be in position to engage with the eye. By means of this improved method of -r'nanufacture,' such hooks The-{arrangement of'the feeder and other parts'has been shown anddescribed in connection with a standard sewlng machlneof s the Singer type used for factory work, and

the various adjustments shown have, been provided for'simplifying the installation of the feeder-in different machines of this acter. However, it will be noted that the essential feature ofithe feeder for: the blank operating in synchronism with the feeder of the machine and the needle may be applied to other forms of machines; therefore I do not wish to be limited to the eXact construction or arrangement or to the particular method herein described, except as specified in the following claims in which I claim: p 1, In anapparatus of the character set forth, the combination withfa sewing machine having the usual feed mechanism, of

chara carrier having means for receiving and holding a trouser h-ookprovided with holes for receiving stitching, a guide for said car mated by thegmachine for moving the pawl to cause it to engage the teeth and feed the carrier past the needle. v 2. device as per claim 1 .in which the stop member on the carrier is manuallyoperable, means for holding the stop member normally out of engaging position, and an-abutment adapted toobe engaged by said stop member when the carrier reaches a predetermined position.

'3. A device as per claim 1 in which the means for moving the pawl actuates it through a rectangular path to cause it to engage with and be disengaged from th teeth of the carrier.

ner end of the hook when in engaging position.

ti. The combmation with a sewing machine having a feed mechanism and having a pair of rocker shafts, of a guide, a feeder movable along said guide and having teeth thereln, a pawl for engagement with said teeth, a bar having a bearing for holding the pawl, an arm secured to one of the rocker shafts in the machine andpivoted to one end of the bar, an arm pivoted to another rocker shaft in the machine, and a roller on the last named arm which engages with a fork at the opposite end of the bar.

7. A device as per claim 6 in which one arm is adjustably mounted on one of the rocker shafts, and means for adjusting the length of the arm.

8'.- The combination with a sewing machine, of a guide arranged transversely of the machine, a carrier adapted to move along said guide and having teeth therein, a resilient pawl for engaging said teeth, means for actuating the pawl to move the carrier, and manually operable means on the carrier for holding the pawl in depressed position to prevent its engagement with the carrier.

9. In a device of the character set forth, the combination with a sewing machine, having feeder shafts, of a guide, a carrier slidably mounted on the guide, and having teeth in the lower side thereof, a pawl projecting upwardly through the guide and adapted to engage with said teeth, a support for said pawl, resilient means for holding the pawl in engaging position, means actuated by the feeder shafts of the machine for actuating the pawl for feeding the carrier, a shoe mounted in said carrier, a push button for depressing theshoe, a rail mounted in a slot in the guide and adapted to be engaged by said shoe, means actuated by the rail for holding the pawl in depressed position, an arm having one end pivoted to the machine and the other end connected with the rail,

and a'spring for holding the arm in raised position.

OWEN KENT. 

